A stablecoin is a cryptocurrency designed to maintain a stable value by pegging to a reserve asset, typically the U.S. dollar, though some are backed by other fiat currencies, commodities, or algorithms. The most common type is fiat-collateralized, where issuers hold one dollar in reserves for every stablecoin token issued. Stablecoins serve as a bridge between traditional finance and crypto, enabling traders to move value quickly without volatility exposure.
Example:
USDC (USD Coin) is a stablecoin that trades at approximately $1.00. If Bitcoin crashes 20% in an hour, a trader holding $50,000 in Bitcoin can immediately swap it for 50,000 USDC, preserving their value. They can later buy back into crypto markets without converting to fiat or leaving the blockchain ecosystem. Stablecoins are commonly used in DCA-out strategies to preserve gains while waiting for re-entry opportunities, and for portfolio rebalancing without incurring tax events from converting to fiat.